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All results from a given calculation for C4H4O (Furan)

using model chemistry: SVWN/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at SVWN/6-31G**
 hartrees
Energy at 0K-228.774857
Energy at 298.15K 
HF Energy-228.774857
Nuclear repulsion energy161.355163
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at SVWN/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3233 3181 0.01 213.84 0.11 0.20
2 A1 3209 3156 0.11 23.44 0.40 0.57
3 A1 1510 1485 17.83 30.50 0.25 0.41
4 A1 1417 1394 1.68 7.25 0.54 0.70
5 A1 1162 1143 2.98 26.98 0.16 0.28
6 A1 1106 1088 9.18 9.45 0.66 0.79
7 A1 1004 988 36.77 2.21 0.61 0.76
8 A1 869 855 11.65 0.14 0.41 0.58
9 A2 845 832 0.00 0.96 0.75 0.86
10 A2 699 688 0.00 2.92 0.75 0.86
11 A2 606 596 0.00 0.05 0.75 0.86
12 B1 796 783 0.81 0.68 0.75 0.86
13 B1 727 715 84.72 1.14 0.75 0.86
14 B1 629 619 19.64 2.04 0.75 0.86
15 B2 3226 3174 0.02 10.26 0.75 0.86
16 B2 3199 3147 1.13 106.53 0.75 0.86
17 B2 1589 1563 0.66 0.10 0.75 0.86
18 B2 1257 1237 9.92 0.02 0.75 0.86
19 B2 1229 1209 4.76 1.67 0.75 0.86
20 B2 1043 1026 6.84 5.22 0.75 0.86
21 B2 866 852 0.05 3.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15110.5 cm-1
Scaled (by 0.9837) Zero Point Vibrational Energy (zpe) 14864.2 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at SVWN/6-31G**
ABC
0.31931 0.31033 0.15738

See section I.F.4 to change rotational constant units
Geometric Data calculated at SVWN/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.152
C2 0.000 1.087 0.350
C3 0.000 -1.087 0.350
C4 0.000 0.711 -0.958
C5 0.000 -0.711 -0.958
H6 0.000 2.051 0.856
H7 0.000 -2.051 0.856
H8 0.000 1.374 -1.822
H9 0.000 -1.374 -1.822

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9
O11.35121.35122.22682.22682.07212.07213.27653.2765
C21.35122.17461.36122.22391.08833.17872.19113.2829
C31.35122.17462.22391.36123.17871.08833.28292.1911
C42.22681.36122.22391.42222.25513.30441.08922.2572
C52.22682.22391.36121.42223.30442.25512.25721.0892
H62.07211.08833.17872.25513.30444.10172.76234.3478
H72.07213.17871.08833.30442.25514.10174.34782.7623
H83.27652.19113.28291.08922.25722.76234.34782.7483
H93.27653.28292.19112.25721.08924.34782.76232.7483

picture of Furan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 110.371 O1 C2 H6 115.883
O1 C3 C5 110.371 O1 C3 H7 115.883
C2 O1 C3 107.168 C2 C4 C5 106.045
C2 C4 H8 126.456 C3 C5 C4 106.045
C3 C5 H9 126.456 C4 C2 H6 133.746
C4 C5 H9 127.499 C5 C3 H7 133.746
C5 C4 H8 127.499
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.333      
2 C 0.058      
3 C 0.058      
4 C -0.157      
5 C -0.157      
6 H 0.140      
7 H 0.140      
8 H 0.125      
9 H 0.125      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.523 0.523
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.099 0.000 0.000
y 0.000 -23.658 0.000
z 0.000 0.000 -27.339
Traceless
 xyz
x -5.601 0.000 0.000
y 0.000 5.561 0.000
z 0.000 0.000 0.040
Polar
3z2-r20.080
x2-y2-7.441
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.626 0.000 0.000
y 0.000 7.456 0.000
z 0.000 0.000 6.765


<r2> (average value of r2) Å2
<r2> 80.747
(<r2>)1/2 8.986